if not for the good of science, then at least to help one of his favorite charities. >> i'm willing to offer $5 million to donald trump if he will come -- that he can donate to a charity of his choice, hair club for men, the institute for inkcorrigible douche-baggery. >> the ball is now firmly in your court. stay with us. the day's "top lines" are coming up. ♪ you know my heart burns for you... ♪ i'm up next, but now i'm singing the heartburn blues. hold on, prilosec isn't for fast relief. cue up alka-seltzer. it stops heartburn fast. ♪ oh what a relief it is! >>> from serious conversation about guns to silly season across the road. here are today's "top lines." no, you stay classy. >> it's 2013, suck it, mayans. >> the second amendment isn't there for duck hunting. >> i don't need an assault weapon to shoot a duck. >> it's there to protect us from tyrannical government. >> barack obama is getting inaugurated again. shows you the power of the nra. >> more guns means less crime. >> number of people in america killed by firearms is extraordinary. i don't think we're a blood thirsty